GBZ/AZI
Multifunction operation
The combined function valve GBZ/AZI developed from RZN and RZI basic types provide multifunction operation as tight shutoff, flow control, and non-return valves in a single, compact unit. They can take the place of shutoff and check valves and fulfill multiple application requirements most economically.
The isolating and control actuator operates through a free travel coupling so that the freeacting hydraulically damped disc can close automatically without slamming, if the pump should fail.
- AZI: DN100 / 4" to DN800 / 32"
- GBZ: DN500 / 20" to DN3000 / 120"
- -50°C / -58°F to 200°C / 392°F
- PN2.5/6/10/16/25/40
- ANSI 150/300
Advantages
- Multi-function
- Compact design
- Minimum pressure loss
- Stable operation
- Controlled, non-slam closure
- Additional screw safety device
- Prepared for retro-fitting of counterweights if flow conditions change
Options
- Wide choice of actuators and control systems
- Disc locking device, mansafe design
- Additional counterweight
- Vulcanized hard rubber coating
- Butt weld ends
- AZI: complete hydraulic unit
Features of the combined function valve GBZ/AZI
- 3 in 1 combination valve for tight shut-off, control, and non-return function in one compact unit
- Resilient seal or laminated metal-to-metal sealing – triple offset design with inclined conical sealing system
- Auto-closing
- Minimum pressure loss in open position
- GBZ: multirate adjustable hydraulic damping system, located externally and separated from the media
- AZI: multi-rate adjustable interval damping system
Brochures
ADAMS Product range
